How Old Is Mackenzie Douthit?

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Teen Mom 3's Mackenzie Douthit was born on October 17, 1994, which currently makes her sweet 18! This country gal-turned-reality TV starlet has accomplished a lot in her 18 years. Not only is she a great mom to baby Gannon (born Sept. 12, 2011), but she's also a skilled cheerleader, equestrian, and hair stylist. Mackenzie says that enrolling in cosmo school was the "best decision [she's] ever made."Mackenzie's not married yet, but she and baby daddy Josh McKee definitely plan to tie the knot when they're a little bit older. She is so mature for her age!Are you excited to learn more about this blond-haired cutie on MTV's Teen Mom 3? Tell us below!